Nebulizing method:Oil-free piston air compressorPower supply:AC 220V±22V/50HZ AC 110V±11V/60HZMax Compressor Pressure:31 psiOperation Pressure:12-16 psiMax air flow:>12L/minMax nebulization rate:0.4ml /minRespirable volume (particle):3.6-4.2umNoise level:≤ 60dB(A)Operation Temperature Range:10°C to 40°C (50°F 104°F)Operation Humidity Range:30% 75%Power consumption:80WAccessories:Nebulizer bottle, Air tube, Mouth piece, Adult mask, Child Mask, Air filters (2pcs) Fuse(2pcs) For the successful treatment of asthma, allergies and other respiratory disorders. Creating a stream of air that travels through the clear tube to the nebulizer, which converts medication into an aerosol mist for easy inhalation 1). Special piston air pump design for powerful and quiet operation 2). Compact and lightweight 3). Easy-to-use, one-button operation 4). Breath-enhanced nebulizer design for shorter treatment time5).0-20ML medication capacity6). Ideal for all ageS